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LTC1709 Datasheet(PDF) 9 Page - Linear Technology

Part # LTC1709
Description  2-Phase, 5-Bit Adjustable, High Efficiency, Synchronous Step-Down Switching Regulator
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1709 Datasheet(HTML) 9 Page - Linear Technology

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9
LTC1709
FU CTIO AL DIAGRA
SWITCH
LOGIC
0.8V
4.7V
5V
VIN
VIN
A1
CLK2
TO
SECOND
CHANNEL
CLK1
+
–
+
–
–
+
VREF
INTERNAL
SUPPLY
EXTVCC
INTVCC
SGND
+
5V
LDO
REG
SW
SHDN
TOP
BOOST
TG
CB
CIN
DB
PGND*
BOT
BG
INTVCC
INTVCC
VIN
+
VOUT
1709 FBD
EAIN
DROP
OUT
DET
RUN
SOFT-
START
BOT
FORCE BOT
S
R
Q
Q
OSCILLATOR
PLLFLTR
50k
EA
0.86V
0.80V
OV
VFB
1.2
µA
6V
VIN
–
+
RC
4(VFB)
SHDN
RST
RUN/SS
TYPICAL ALL
VID PINS
ITH
CC
CSS
4(VFB)
SLOPE
COMP
+
–
SENSE–
SENSE+
INTVCC
30k
45k
2.4V
45k
30k
I1
VID0
VID1
VID2
VID4
40k
VBIAS
ATTENIN
ATTENOUT
R2
20k
R1
R1 VARIABLE
AMPMD
DIFFOUT
0V POSITION
PHASE DET
PLLIN
DUPLICATE FOR
SECOND CHANNEL
+
–
RSENSE
L
COUT
VOS
+
VOS
–
FIN
RLP
CLP
VID3
5-BIT VID DECODER



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